Area of square painting is 400 square inches.
Let the side of square painting is = a inch
So the area of square painting is =

square inch.
So


Length of wood trim to need to go around the painting is equal to the perimeter of square painting .
So the perimeter of square painting is = 4 * (side)
= 4* 20 = 80 inch.
So the required length of wood trim is = 80 inch.
-1(18+4x)=8
Then you distribute
-18-4x=8
-4x=26
X= -6.5
Answer:
i think its 7/10
Step-by-step explanation:
First distribute 3(8-6n):
3(8 - 6n) = 42
24 - 18n = 42
Now subtract 24 from both sides:
-18n = 18
And divide both sides by -18 to finally isolate n:
n = -1